Ancient; old; in jungian psychology, denoting the ancestral past of mental processes. [G. archaikos, ancient]
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ar·cha·ic är-'kā-ik adj
1) typical of a previously dominant evolutionary stage <\archaic features of a fossil skull>
2) having the characteristics of primitive humans and their animal forebears esp. as represented in the unconscious and appearing in behavior as manifestations of the unconscious
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ar·cha·ic (ahr-kaґik) [Gr. archaios ancient] very ancient; pertaining to early evolutionary stages.Medical dictionary. 2011.